CVE-2025-1013CWE-362

CVE-2025-1013

Medium · published February 4, 2025

CVSS v3.1

6.5

EPSS

Percentile

24.1

In the wild

Unconfirmed

What it is

A race condition could have led to private browsing tabs being opened in normal browsing windows. This could have resulted in a potential privacy leak. This vulnerability was fixed in Firefox 135, Firefox ESR 128.7, Thunderbird 128.7, and Thunderbird 135.

The record

Technical detail

CVSS v3.1: 6.5 · MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
CVSS v4.0: Not supplied
EPSS: 0.00325 · 24.1th percentile
Weakness: CWE-362 · Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Published: 2025-02-04T19:15Z

Affected products (4)

Product	Versions	Fixed in
mozilla/firefox	< 128.7.0	128.7.0
mozilla/firefox	< 135.0	135.0
mozilla/thunderbird	< 128.7.0	128.7.0
mozilla/thunderbird	≥ 129.0, < 135.0	135.0

References (6)

https://bugzilla.mozilla.org/show_bug.cgi?id=1932555 · [email protected]https://www.mozilla.org/security/advisories/mfsa2025-07/ · [email protected]https://www.mozilla.org/security/advisories/mfsa2025-09/ · [email protected]https://www.mozilla.org/security/advisories/mfsa2025-10/ · [email protected]https://www.mozilla.org/security/advisories/mfsa2025-11/ · [email protected]https://lists.debian.org/debian-lts-announce/2025/02/msg00006.html · af854a3a-2127-422b-91ae-364da2661108

EPSS history

Timeline

04 FEB 13:58Z
Potential opening of private browsing tabs in normal browsing windows
cvelistv5